Cleaning apparatuses for carding machines



Feb. 10, 1959 K. J. H. JEPPSON ET AL 2,872,708

CLEANING APPARATUSES FOR CARDING MACHINES Filed June 4, 1956 4Sheets-Sheet 1 Feb- 1 1 59 K; J. H. JEPPSON ET AL 2,872,708

CLEANING APPARATUSES FOR CARDING MACHINES Filed June 4, 1956 4Sheets-Sheet 4 Patented Feb. 10, 1959 hire CLEANING APPARATUSES FORCARDING MACHINES Kurt Josef Harry Jeppson and 'Knut Erik Olson, Mahno,and Otto Richard Paul Altmann, Limhamn, Sweden, assignors to ManufakturAktiebolaget i Malmo, Malmo, Sweden, a corporation of Sweden ApplicationJune 4, 1956, Serial No. 589,043 Claims priority, application SwedenNovember 29, 1955 3 Claims. (Cl. 19-109) This invention relates to acleaning apparatus for carding machines.

In carding machines the card waste must be cleaned from time to timefrom the card clothings which will adhere thereto even though themachines are provided with fixedly mounted strippers. This cleaning workhas hitherto been carried out byhand and is very time-consuming andheavy.

The present invention has forits object to provide an apparatusforperforming this cleaning work which is readily designed so as to beportable to permit its use for a plurality of carding machines.

The invention -is thus concerned with an apparatus for removing cardwaste from the card clothings on the rotat- V able drums in cardingmachines, and it is characterized in that a cylinder, which has itsperiphery equipped with teeth, is mounted for rotation in a housing witha slot uncovering an arc portion of the cylinder and extending along thewhole length thereof, and that a compressedair turbine mounted in or onthe housing is drivingly connected to said cylinder.

Further objects and advantages of the invention will become apparentfrom the following description, reference being had to the accompanyingdrawings illustrating an embodiment of the invention. In the drawings:

Fig. 1 is a side elevation of the cleaning apparatus,

Fig. 2 is a view of the apparatus as seen from the left in Fig. 1,

Fig. 3 is a section on line III--III in Fig. 1,

Figs. 4 and 5 are sections on line IVIV and VV, respectively, in Fig. 2.

The illustrated cleaning apparatus has a cylinder 1 which is mountedbetween end walls 2 and 3 on a shaft 4. Teeth 5 spaced relatively largedistances apart are carried by the periphery of the cylinder 1, and saidcylinder is enclosed in a housing 6 which has a slot 7 (see Fig. 5)uncovering an arc portion of the cylinder and extending along the wholelength thereof. The teeth 5 of the cylinder 1 project through said slot7. The shaft 4 is rotatably mounted in the housing 6 on ball-bearings 8and 9. The end wall 2 of the cylinder 1 is formed with a gear rim 10engaging with a gear rim 12 formed on one end of a shaft 11. Said shaft11 is rotatably mounted on ball-bearings 13 and 14 in a turbine casing15, 16 which is fixedly connected to the housing 6 and can be consideredas a part thereof. A turbine wheel 17 is non-rotatably secured to theshaft 11, and compressedair jets are blown through nozzles 18 againstthe vanes of the turbine wheel. Compressed air is supplied to saidnozzles 18 through a manifold 19 arranged in the part 16 of the turbinecasing. The manifold 19 is connected to a compressed-air supply duct 20which is designed so as to form a handle for the apparatus and containsa shut-off valve which is operable by means of a lever 21. The airdischarged from the turbine wheel 17 passes from a chamber 22 in thepart of the turbine casing through a passage 23 to a discharge conduit24 (see Figs. 4 and 5) which extends along one longitudinal margin ofthe slot 7 which is parallel with the shaft 4, said discharge conduitopening into the slot by means of a narrow outlet orifice 25 extendingalong the whole length of the slot.

Adjacent to the longitudinal margin of the slot 7 which .is opposed tothe discharge conduit 24, the interior of the housing 6 is incommunication with a suction fan (not shown), the suction conduit ofwhich is connected to a suction hopper 26 formed on said housing andhaving a connection piece 27.

A slider 28 is fixedly arranged on the housing between the suctionhopper 26 and the adjacent longitudinal margin of the slot 7, and on theopposite side of the slot 7 there is provided an adjustable slider 29outside the discharge conduit 24. The slider 29 has lugs 30 which arepivotally connected by means of pivots 31 to guide rods 32 which aremovable in sleeves 33. Said sleeves 33 are secured to brackets 34projecting from the housing 6 and carrying bearings 35 for an adjustmentshaft 36. Said shaft carries a worm wheel 37 by means of which the shaft36 can be rotated by the rotation of a worm 38 meshing with said wormwheel and secured to an operating shaft 39. The shaft 39 is mounted in asleeve 40 which is welded to a U-shaped handle member 41 which isparallel with the cylinder 1 and extends between the part 15 of theturbine casing and the end of the housing 6 remote from the turbinecasing. The shaft 39'is rotatable by means of ahandwheel 42, and theworm gear 37, 38 is self-locking so that the shaft 36 remains in theposition into which it has been adjusted by means of the handwheel 42.The ends of the shaft 36 are provided with crank pins 43 which arefixedly secured to eccentric discs 44 surrounded by eccentric rings 45.Said rings 45 are fixedly connected to rods 46 which are pivotallyconnected by means of pins 47 to lugs 48 secured to the slider 29.

It will thus be realized that by a rotation of the handwheel 42 it ispossible to rotate the shaft 36 so that the cranks 43 and the eccentrics44, 45 move the rods 46 and consequently the sliding member towards oraway from the brackets 34, the guide rods 32 simultaneously sliding intheir guide sleeves 33. By the pivotal connection between the rods 32,46 and the slider 29 the latter can also be tilted somewhat in everyposition of adjustment.

When the apparatus is to be used, c. g. for cleaning a drum of a cardingmachine, the operator grasps the apparatus by the handles 20 and 41,moving it towards the card drum in such a way that the slider 28 will beapplied against the clothing of the card drum in parallel with the axisof said card drum, after the toothed cylinder 1 of the cleaningapparatus has first been set in rotation by operation of the lever 21 sothat compressed air is supplied to the turbine wheel 17. The toothedcylinder 1 will now rotate in such a way that the teeth 5 enter the slot7 at the outlet orifice 25 of the discharge conduit 24 and leave theslot 7 at the slider 28. After said slider 28 has come in contact withthe clothing of the card drum the apparatus is swung around the slider28 so that the slider 29 will also be applied against the card clothing.For this operation the slider 29 is set by means of the handwheel 42 insuch a way that the teeth 5 engage to a satisfactory depth with the cardclothing. The card drum is rotated slowly so that the card clothing willbe cleaned around the entire periphery of an axial portion of the carddrum. After that, the apparatus is moved to another portion of the drumfor cleaning said portion, etc., until the entire card drum has beencleaned. In the cleaning operation the teeth 5 engaging the cardclothing tear off the card waste which has been caught there and throwit towards the suction hopper 26 from where the waste passes through thesuction conduit (not shown) connected to connection piece 27 and iscollected in an ordinary collecting device of any known type. Thesuction through the hopper 26 is improved by the airdischarged fromtheturbine whichenters the slot 7 through the outlet orifice 25 of thedischarge conduit 24 andflows across the slotto the suction hopper 26 inthe direction of rotation of the teeth 5.

What We claim and desire to secure by Letters Patent is:

1. An apparatus for removing card waste from the card clothing onrotatable drums in carding machines, comprising a cylinder, teethmounted on the periphery ofsaid cylinder, a housing for said cylinder,means rotatably mounting said cylinder in said housing, means defining aslot in said housing uncovering an arc portion of the cylinder andextending along the whole length thereof, a compressed air turbinemounted in said housing, means drivingly connecting said turbine to saidcylinder, and a suction conduit opening into said housing adjacent thatmargin of said slot at which said teeth of said cylinder leave the slotduring the rotation of said cylinder.

2. An apparatus for removing card waste from the card clothing onrotatable drums in carding machines, comprising a cylinder, teethmounted on the periphery of said cylinder, a housing for said cylinder,means rotatably mounting said cylinder in said housing, means 'defininga slot in said housing uncovering an arc portion of the cylinder andextending along the whole length thereof, a compressed, air turbinemounted in said housing, means drivingly connecting said turbine to saidcylinder, an air outlet from said turbine, a discharge conduitcommunicating with said turbine outlet and extending in parallel withthe axis of said cylinder along substantially the whole length of thatmargin of the slot at which said teeth of said cylinder enter the slotduring the rotation of said cylinder, orifice means in said conduitconnecting the interior of said conduit with said slot alongsubstantially the whole length of said slot adjacent said marginthereof, and a suction conduit opening-into said housing adjacent thatmargin of said slot at which said teeth of said cylinder leave the slotduring the rotation of said cylinder.

3. An apparatus according to claim 2 wherein a first slider isstationarily arranged on said housing adjacent that margin of said slotat which said suction conduit opens into said housing, and a secondslider is adjustably mounted on said housing adjacent'that margin ofsaid slot at which said discharge conduit is arranged, said sliderssupporting the apparatus on a drum of a carding machine during thecleaning of the card clothing of the drum.

References Cited in the file of this patent UNITED STATES PATENTS

